AMSTERDAM (AP) — Police in the Netherlands have arrested a 14-year-old girl on suspicion of threatening American Airlines in a tweet.

Police spokesman Roland Ekkers said the girl, who has not been identified for privacy reasons, turned herself in to Rotterdam police in the company of a parent Monday and is now being interrogated.

The tweet posted Sunday said it came from an al-Qaida member in Afghanistan named Ibrahim and threatened to “do something really big on June 1.” But the account’s handle came with the nickname “Sarah” and a profile image of a young woman.

Apologetic tweets were posted to the account after the airline replied it was taking the threat seriously and calling in law enforcement.